The invention relates to a cosmetic or dermatological composition which includes, in a physiologically acceptable medium, at least trans-resveratrol and/or at least one trans-resveratrol derivative, and an organic filtering system including at least one UVA filter and at least one UVB filter and/or at least one mixed UVA-UVB filter, said composition having an SPF no lower than 15 and a PPD no lower than 5. The invention also relates to a use of a filtering system which includes at least one UVA filter and at least one UVB filter and/or at least one mixed UVA-UVB filter for stabilising, in particular photostabilising, a composition including trans-resveratrol and/or at least one trans-resveratrol derivative.
